The gate to the Exxon Mobil Chemical headquarters is shown Wednesday, Jan. 8, 2014, in Houston. PM Realty Group has purchased 35 acres in the Energy Corridor, including the Exxon Mobil Chemical Co. headquarters, to redevelop the site into what could be a billion-dollar project including a mix of shops, restaurants, hotel , office, residential and other uses. ( Brett Coomer / Houston Chronicle )

The gate to the Exxon Mobil Chemical headquarters is shown...

One of the early real estate developments that helped shape Houston's Energy Corridor on the west side of town has been sold for a major redevelopment project that could include multiple high-rise office towers, a stylish hotel, luxury apartments, and shops and restaurants in a walkable, urban-style environment.

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